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CVE-2013-0338

20
FAUCET Score

CVE-2013-0338 describes a denial-of-service vulnerability in libxml2 versions 2.9.0 and earlier, affecting various distributions including Canonical, openSUSE, and XMLSoft products. An unauthenticated attacker can exploit this by providing a specially crafted XML file with a large internal entity expansion, leading to high CPU and memory consumption. While the CVSS score is moderate (4.3) due to partial availability impact, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.9.0CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
1.7.0CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:1.7.0:*:*:*:*:*:*:*
1.7.1CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:1.7.1:*:*:*:*:*:*:*
1.7.2CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:1.7.2:*:*:*:*:*:*:*
1.7.3CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:1.7.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.86%
Probability of exploitation in next 30 days
EPSS Percentile
85.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0286 is in the 78th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libxml2-0:2.6.26-2.1.21.el5_9.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libxml2-0:2.7.6-12.el6_4.1
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mingw32-libxml2

Vendor Advisories (1)

redhatCVE-2013-0338Moderate

libxml2: CPU consumption DoS when performing string substitutions during entities expansion

Feb 19, 2013

References

lists.opensuse.org / opensuse-security-announce/2013-11/msg00002.html
lists.opensuse.org / opensuse-updates/2013-03/msg00112.html
lists.opensuse.org / opensuse-updates/2013-03/msg00114.html
marc.info
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/52662
secunia.com / advisories/55568
git.gnome.org / browse/libxml2/commit
debian.org / security/2013/dsa-2652
mandriva.com / security/advisories
oracle.com / technetwork/topics/security/cpujan2015-1972971.html
ubuntu.com / usn/USN-1782-1